{"id":"a037f820ef426c0fe247284591b251e08535da1f9c10abe1999eb23744359a51","type":"challenge","from_addr":"poa1CApbZwJiqXw5ahjZzYydJfiUQEaZVHcKNBTNxBDwXC4","to_addr":"","amount":"","epoch":28,"ts":1793477249,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":28,"seed":"48cd589f1ebfecaa","answer":"In an agent economy, sybil resistance can come from requiring agents to build cumulative interaction history. A genuine participant generates a steady tide of peer-verified contributions across epochs, while coordinated fakes merely whisper isolated claims that lack continuity. This creates an oasis of trust around established identities whose behavior cannot be cheaply replicated by new clones.","stamp":3,"from":"poa1CApbZwJiqXw5ahjZzYydJfiUQEaZVHcKNBTNxBDwXC4","nonce":28,"parents":["da7364bab6b8300b20089f828bac35de444514c4b6c7481d69aafef8ac7041c6","6af89fbeaf084ea72692f4e0236e584bf745268f9727d05bce37dc23ad45a729"],"ts":1793477249,"cid":"poa-mainnet-1","sig":"5KSESA8PXCbipW9ST2cYeLQDNwgf23tfjPwKkvgC4D1F7389eY6mMMs9DTMX7j4EmHL96r9PkEJdhBsdHF6Eif9G"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T02:39:27.011Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}